Tire-fastener.



Uri ,rEnsrATisrrnNfr om i,

TIRE-FASTENER,

l1,051,975. speeiacanon of Letters Pateim Patented Feb, 4, 1913Application filed August 3, 1908. Serial No. 446,504.

To all whom it may concern: C

\ Be it known that I, EARLG. VVA'rnoUs,a citizen of the United States,residing at Chicago, in.the`couiityv ofCook and State of Illinois,-haveinvente`da `certain new and useful Improvement in Tire-Fasteners, ofwhich the following is-a"fdescription, ref-V erence being had 'to theaccompanying draw" for its object the provision of a novel and' simplefastening means by which the tire canvbe securely attached to the wheeland be readily detached therefrom. Its novelt)7V will be hereinaftermore fully set forth and particularly pointed out in the claims.

In the accompanying drawings, Figure l is a cross sectionalA viewthrough the rim of a wheel having a tire secured thereto by my improvedfastening meansyl" ig. 2 adetail side elevation of the same; andfFig'Ba'sectional detail of a modification.

The felly A of the wheel has permanently secured to it, by any suitablemeans, a metal rim B providedat one side'with. an integrally. formedannular flange orv` ring C. At the opposite side of the wheel there isprovided a detachable rin-g D corresponding in its general shape tothering Cbut extending radially inward toward the axis' i y of the wheel,beyond the inner surface ofthe rim B, and havin its inner edge inturnedto hook under an engage the edge of the rim which projects beyondtheouter face of the felly, as shown.' Atjjfsuitable intervals around `thecircumference of the Wh/eel the' ring D is provided withslo-ts 1, Fig.'2, op-

posite and coincident with which slots the ring C is provided withVthreaded openings forthe reception of thcthreaded ends of vscrews boltsE which arefinserted from the outer side of the wheel'through the slota..

100 The tire Fis provided 'with adivided .base

.b' b vo-f sLyitable-shape. toltit snugly between. the rings' C and Dand a'gainstt-lie. ,1jim B,`j and said 'base is providedwith transverseslots to accommodate the bolts E. The outer 105 ends of the bolts areprovided with.heads-fc V preferably of approximately the shape shown,projecting in one direction only from thc axis of the bolt and ofapproximately the same width or thickness as thediameter 110 (if thenon, being slightly less than nl@ width bossesd around the outer ends ofthe slots a to afford suit-able bearing surfaces for t-he headso ofthebolts -Eg 'and .the walls ofthe slots a are beveled off to formoutwardly flaring or inclined cam surfaces e, Fig. 2. The ring` C" isalso provided with bosses provide;a'suitablethickness of metal at suchpoints.

and withfthe tire secured in place upon 4the lwheel, as^ in the drawing,all that is necessary, in order to detach tlie tire, is to turn each fthe bolts E a'half revolution,vto bring their heads c into registry withthe slots '-a, andvthen remove the ringD. The tire may then be slippedbodily outward 0H tliewheel; orits outer half may be sprung outward, offtherim, to permit access to the interiorof the tire, for the removal andreplacement ofthe usual inner tube, without entirely removing the tirefrom the wheel.

To replace'- the tire and again secure it to the wheel, itis onlynecessary to set it back D, andthen turn the bolts E back to norlinalpos'itiom at, which operation the heads ofthebolts willride over thecam surfaces e fof the.v slotsla'and force the ring D inward tonormalposition, to again clamp the tire securely 'inv place.

D T he .particular form of the' rings C and D, and consequently theparticular shape of thev base of ,the 'tire whiclrfits between them-isnot material, so long as it is such as to t-anse the rings to securelygrip .and hold the tire in place upon' the rini when the bolts E aretightened up as described. Furthei'lnore` while l consider it the bettercon struction to form the ring C integrally upon .the rim B, as a liangethereof, there being 'no'otcasion to remove it in detaching the tire`nevertheless it lnay be formed separately` if desired` or it may beshaped as in Fig l3 and provided with ears fitting :fagainst andksecured to the felly A. to hold `lthe ring -in place when the-tire isdetached. Theonly tire fasteners of this general lcharacter inlpractical use. so far as l am Qaware, fare fasteners in which clampingrings engaging the opposite sides of the base ofthe tire. are heldinplace and gripped to the tire and rim ofthe wheel by ordinary .screwbolts having the` usual integral heads of the slots a. The ring D isprovided with I `around \t-he bolt holes for the bolts E, to'v Undertheconstruction aboverdescribed,

into kposition on the wheel, replace they ring at one end and clampingnuts applied to their threaded opposite ends. Under such construction itis necessary to unscrew and completely remove the nuts of all the bolts,before the clamping rings can be removed and the tire detached; whereasunder my improved construction the work may be much more quicklyaccomplished by giving each bolt merely a half turn, as described,Without the necessity of removing or detaching any nuts 0T bolts at all.

Having thus fullyA described my invention, I claim;

1. In a Wheel, the combination, with the rim B and tire F, of the ringsC and D and the bolts E, the ring D being provided with the slots a andcam surfaces e, and the bolts E being providedwith the heads ccoperating with said slots and cam surfaces and with the ring D in themanner and for the purpose described.

2. In a wheel, the combination, with the and the outer edge of the ringand having 30 the heads c coperating with said' slots and with the ringin the manner and for the` `purpose described.

EARL G. WATROUS.

Witnesses:

EDWARD RECTOR, LOUIS B. ERWIN.

